Piedmont Weather Forecast

    • 49
    • 61

    Mostly Cloudy

    • 48
    • 64

    Mostly Cloudy

    • 48
    • 69

    Mostly Sunny

    • 52
    • 67

    Partly Sunny

    • 53
    • 65

    Slight Chance Rain

    • 52
    • 67

    Chance Rain

    • 49
    • 64

    Slight Chance Rain

Today 25 Sep Inner Portland Metro

Mostly sunny. Highs in the mid 60s.

Tonight 25 Sep Inner Portland Metro

Partly cloudy this Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. Winds light this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Piedmont Temperature Statistics

September Temperature

Portland, Portland International Airport (3.1 miles)

  • Lowest 8 September, 2026

    51.7 °F

  • Average September

    64.7 °F

  • Highest 9 September, 2026

    88.6 °F

Climate (2021–2026)

Portland, Portland International Airport (3.1 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.4 °F
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